Amalgamating-machine.



M. ARNOLD.

AMALGAMATING MACHINE.

APPLICATION IILEDSEPTrlfi, 1913.

1,127,845. Patented Feb. 9, 1915.

5 2 SHEETSSHEET 1.

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M. ARNOLD.

AMALGAMATING MACHINE.

APPLICATION FILED SEPT.15, 1913.

Patented Feb. 9, 1915.

2 SHEETS-SHEET 2. 42 11 WE 1 14 7: is

40 6 27 42 my 5/ 42 522 22 lm 59 Z; 59 Z5 T; Z1:

WITNESSES FIGURE 5 INVENTOR 22m W BY 0 HIS ATTORNEY pair FlQht MATTHEW ARNOLD, OF SAN JOSE; CALIFORNIA.

AMALGAMATING-MACHINE.

Specification of Letters Patent.

Patented Feb. 9,1915.

Application filed September 15. 1913. Serial No. 789,812.

To all whom it may concern Be it known that I, MATTHEW ARNOLD, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented a new and useful Improvement in Amalgamating- Machines, of which the following is a specification.

My invention relates to an improvement in amalgamating machines, and the objects of my invention are, first to provide an amalgamating machine that does not require the use of amalgamating plates; second, to provide an amalgamating machine that will separate all of the gold from the pulp supulied to it; third, to provide an amalgamating machine that will effectually prevent any loss of mercury or amalgam; fourth, to provide an amalgamating machine that can be attached to any ore pulverizing machine.

Further obiects and advantages will appear in the following description. I

I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a front elevation of my amalbeing broken.

gamating machine, parts away. Fig. :2 is a plan view of mv amalgamating machine. Fig. 3 is a vertical cross section on line A-A of Fig. 2.

Similar numerals refer to similar parts throughout the several drawings. 1

Referring to the drawings, 1 is a bored cylindrical casting which constitutes the main body of my machine; said cylinder 1 being supported by a member 2, which is preferably an integral part of. said cylinder and provided with a flange 3 by which said cylinder 1 is bolted securely to asupport constructed for that particular purpose, or directly to an ore pulverizing machine. Near the upper end of said cylinder l-are provided two circular inlets 4 through which the pulp is admitted to cylinder 1; said inlets 4 are provided'with offsets 5 to which a flanged inlet pipe 6 may be fastened by stud bolts 7. Cylinder head 8 is securely bolted to said cylinder 1 by bolts shown at 9, said cylinder head 8 having a drip ring cast on its upper surface as shown at 10, and a hole bored through its center to permit the free working of piston rod 11. Said piston rod 11 is preferably made of bronze and is threaded on its upper end to engage the bored and threaded arm 12 of guide 13 and is securely held in place in said arm 12 by collar nuts 14, one on each side thereof. Said guide 13 is provided with flanges 15, and pinion 17 which travels in a vertical direction in guide slot 16 when power is applied to pinion 17 which is an integral part of guide 13. Said guide slot 16 is formed by two vertical, parallel steel bars 18 which are preferably an integral part of cylinder head 8 Near the lower end of said cylinder 1 is a shouldered flange 19, preferably an integral part of saidcylinder 1 and strength ened and supported by braces 20, for this shouldered flange 19 supports the entire weight of the-amalgamating receptacle and its contents. Suspendedin approximately the center of said cylinder 1 and projecting a distance below the lower edge thereof, is a bell shaped deflector, the same being closed at the bottom'and top, as shown at 21; said deflector being suspended by means of a horizontal bar 22, which is fastened'to the inner circumference of said cylinder 1 by screws 23. Piston rod 11 has a valve 24 attached-near its lower end and a rod 25, of smaller diameter than piston rod 11, depending from the center of the under surface of said valve 24; said, rod 25 being of sufficient length to permit the valve to open a distance on the upstroke ofsaid piston rod 11, and threaded on the end to receive a threaded nut 26, and pierced to receive a steady pin :27: said rod 25 passesthrough a vertical hole $28 in bar 29, said bar 29 being fastened at both ends to the inner circumference of,

piston. head 30 said piston head 30 being hollownndhaving a yalve'seat 24* on its upper .edgeto receive valve 2-1, and a plurality of grooves in its outer circumference as shown at 31 to-receive a water-tight packing. This packing may be made of steel spring rings or any other suitable packing that will prevent water from passing between said piston head 30 and the inside of cylinder 1 on the down stroke of piston head 30 when valve 24: is closed down on valve seat 24. At the extreme lower end of cylinder 1, and preferably an integral part thereof, is an outward diverting flange ,1. This flange 1 is for the purpose of diverting the pulp through the mercury on the down stroke of piston head 30 and thus accomplishing two desired results; first, it causes said pulp to be discharged in a wide, comparatively thin, circular stream, thus per mitting practically all of said pulp to come in contact with said mercury; second, it

causes said pulp to pass vertically upward-- through the center of the bod-y of mercury, thus allowing said mercury to act upon said pulp on all sides. I t

The amalgamating receptacle 32 is securely bolted toshouldered flange 19' by bolts 33, and has two handles 34 securely bolted near the upper edge of its inner wall, for the purpose hereinafter described. The lower partof ama'lgamatin'g' receptacle 82 is hemisphe'rical in shape, and has a cir- I cular orifice in the lower part thereof, This orifice is tapped and 'tlireade'dfrbni both its inner and outer en'd's so that it mayreceive a plugironi either"direction a shown'at and i 36, The drawing" shows? a plug screwed'into position from the 'insideat 37. lhe upper portion of amalgamating'recep tac'le 32 is circular in plan andhas'a waste f chamber 3% and a' discharge chute as" shown at'38, and an' inner partitionjwall 39'which is ,jp'referahly" an 'inte ral partof receptacle 32,5111'61' isp'rovided' iwith openings 40 which are the discharge o ening from theamalgamating chamber 41.: ImfnediateIy beloW" said openings 40 is a'- flange flaring'inwardlyf as show'n .at {l 2"'for the purpose"hereinafter described. 43" is an"endless'pipeencircling' saidcylind'e'r 1',havingiafcontinuous slot out in its lower side' asf slrownfat landsup plied with water-"und r" r ssure enough pipe 43 irshows averti'cal"hole bored? through a b'os's cast' fon tl re'upperp's irfa'ce off said "shouldered' fl'ange l9], and through said shouldered flange '19, by wliiIcHmerfcur'y is d t d t s id iam leama n mber41:; plug, is shown at 46' for closingth same; 47" is a glass gage set Qin cerne'nt andcon nected to said'amalgamatingfchamber 41 1 by' alpassage 48", passage 48; is bored through from, the" outside ,anc'lfthe outer portion of j the openingf shown at 49," is BYP Q Fld-i] v a, V i 50 ind'icats thefpoint"onth'e age which shows when sufficient mercury h as"been placed infthe amalgamating chamber. I 51 indicates the point on 'J the gage to which the imercn y advanced w-h'en so; filled with amalgam jthat it should he re moved for reduction." I I 4 I The' action of my machine fas follows'i; Theamalgamating'chainber 41 is filled with mercury to the point 50. jonv tlifegage; Pul verized ore mixed "with water "is admitted to c'yIind'er' 1" through inlet 45 ,As piston" rod 'fll ascendsit opens the valve" 24 until the nut 26' strikesfthe bar 29 ,fwhen thepis ton head '30 is drawnupwardallowing the pulp toflow' downward through the valve opening; until it reaches the'fsur'faceI of the. the direction ofjthe piston rod the comparatively narrow space between the deflector 21 and outward diverting flange 1 of cylinderl, and through the mercury Where the amalgam is formed, the residue passing 0E through openings l0 into the-waste chamber 32, and discharged at the chute 38. If at any time the pulp does not contain sufficient water, then water under pressure is forced through the pipe 43 into pipe 48, and through the slot 44, and

against the outer surfacefof cylinder 1,

which, together with flaringflange 4:2 gives it an eddying 7 motion which effectually dilutes the pulp and allowsevery particle of" gold to settlein'the mercury because of its" greater specific gravity. The specific gravity of gold being about 19.28, and of mercury about 13.62, nearly all of the gold will beseparated from the pulp during the pas sage of said pulp through the mercury, and

the eddying motion described abovewill effectually extractthe remainder. When suf ficient amalgam has? formed to raise the level of the mercury to the p oint51, hoi'stin'g'fchains are attachedto handles 34, the boltsv 33 areremoved 1 and the entire amal garnatin'g' receptacle is loweredgwhereupon" plug 37 can berer'noved and the amalgam drawn I on into another receptacle, the plug" replaced and f the amalgamatingij receptacle put back'lnto position. If the plug ls screwedinto placefrom the'jontside instead of from'the' inside as shown, thenith e amalgam may be removed without detaching the amalgamating receptacle'fromthe main portion of the machine.

I Having thus'describe'd my invention, what I'claim "asnew and desire to'se'cure by L ter s Patent, is I I I I 4 I I 1. In an amalgamating machine the cbmbination of'a cylindrical casting h'aving'a supporting member, a sh uI'dered fiange adapted to fasten an'amalgamating recep-" tacl'efthereto,abel1 shaped deflector'closedY atthe bottom and "top thereof, ahorizontal barfastened 'to the inner] circumference of said cylindrical I casting to which said bell shaped deflector is fastened, an outwardly projecting diverting flange at the lower end ofsal'dcyllndricalcasting and an ain'alga matin receptacle hemispherical in shape "at-' tached to said shoulderedlfian ge. the upper portion "thereof being'circular in plan having a' waste chamber andfa discharge chute and" an inner partition fwall having openings, as shownfand described; I I I I I 2. In an amalgama-ting machine the combinatio'nfof a cylinder having asupporting.

member, a shouldered flange adapted to fasten-" an alnalganiating receptacle thereto, a; deflector, horizontal. bar fastened" to the.

j inner ircumferenceor said cylinder to w'h h S nd d ct r! 1s 5 fa ed,-v a vo t? waral diverting-i" flange at. the. lower end ofsaid cylinder," and an ainalga mating receptacle attached to said shouldered flange, said amalgamating receptacle having an inwardly flaring flange, substantially as shown and described.

3. In an amalgamating machine, the combination of a cylinder having a supporting member, a shouldered flange adapted to fasten an amalgamating receptacle thereto, a bell shaped deflector closed at the bottom and top thereof, a horizontal bar fastened to the inner circumference of said cylinder to which said bell shaped deflector is fastened, an outwardly projecting diverting flange at the lower end of said cylinder, and an amalgamating receptacle hemispherical in shape attached to said shouldered flange said amalgamating receptacle being provided with a closable orifice in the lower part thereof as and for the purpose described.

4. In an amalgamating machine, the combination of a cylinder having a supporting member, a shouldered flange, a bell shaped deflector closed at the bottom and top thereof, a horizontal bar fastened to the inner circumference of said cylinder to which said bell shaped deflector is fastened, an outwardly projecting diverting flange at the lower end of said cylinder, means for ad mitting pulp to said cylinder, means for forcing said pulp out of the lower end of said cylinder, and an amalgamating receptacle hemispherical in shape attached to said shouldered flange, said amalgamating receptacle being provided with a closable orifice in the lower part thereof and having a waste chamber in the upper portion thereof and a discharge chute and an inner partition wall having openings as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MATTHEW ARNOLD.

Witnesses JOHN A. NAISMITH, LEICESTER DARWALL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

